Remove launch bound for layout kernels

csrc/kernels/layout.cu

@@ -7,11 +7,10 @@ namespace deep_ep {
 namespace layout {
 
 template <int kNumThreads, int kNumExpertsPerSM, int kNumRanksPerSM>
-__global__ void __launch_bounds__(kNumThreads, 1)
-get_dispatch_layout(const int64_t* topk_idx,
-                    int* num_tokens_per_rank, int* num_tokens_per_rdma_rank,
-                    int* num_tokens_per_expert, bool* is_token_in_rank,
-                    int num_tokens, int num_topk, int num_ranks, int num_experts) {
+__global__ void get_dispatch_layout(const int64_t* topk_idx,
+                                    int* num_tokens_per_rank, int* num_tokens_per_rdma_rank,
+                                    int* num_tokens_per_expert, bool* is_token_in_rank,
+                                    int num_tokens, int num_topk, int num_ranks, int num_experts) {
     auto sm_id = static_cast<int>(blockIdx.x);
     auto thread_id = static_cast<int>(threadIdx.x);